Neural network method as means of processing experimental data on grain crop yields Aleksandr Nikiforov, Aleksei Kuchumov, Sergei Terentev, Inessa Karamulina, Iraida Romanova and Sergei Glushakov E3S Web Conf., 161 (2020) 01031 Published online: 15 April 2020 DOI: 10.1051/e3sconf/202016101031